On 3/19/2007 5:23 PM, Ernest Turro wrote:
> Hi,
>
> I'm trying to register my native routines using R_registerRoutines
> (...). I can compile the code, but the loader cannot resolve the symbol:
>
> undefined symbol:
> _Z18R_registerRoutinesP8_DllInfoPK12R_CMethodDefPK15R_CallMethodDefS3_S6
> _
>
> $ nm bgx.Rcheck/bgx/libs/bgx.so | grep R_registerRoutines
> U
> _Z18R_registerRoutinesP8_DllInfoPK12R_CMethodDefPK15R_CallMethodDefS3_S6
> _
>
> Why does it have this funny name? If I look at libR.so, I get an
> ordinary symbol name:
That looks like C++ name mangling. Are you wrapping your declarations in
extern "C" { }
?
Duncan Murdoch
>
> $ nm ~/lib64/R/lib/libR.so | grep R_registerRoutines
> 0000000000032f80 T R_registerRoutines
>
> I get normal symbol names for R functions not in Rinternals.h and
> there is no problem there. For example:
>
> nm bgx.Rcheck/bgx/libs/bgx.so | grep Rprintf
> U Rprintf
>
> $ nm ~/lib64/R/lib/libR.so | grep Rprintf
> 0000000000129690 T Rprintf
>
> The shared library dependencies are also fine:
>
> $ ldd bgx.Rcheck/bgx/libs/bgx.so
> libR.so => /home/et04/lib64/R/lib/libR.so (0x0000002a95676000)
> libstdc++.so.6 => /usr/lib64/libstdc++.so.6
> (0x0000002a95a80000)
> libm.so.6 => /lib64/tls/libm.so.6 (0x0000002a95c70000)
> libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x0000002a95df7000)
> libc.so.6 => /lib64/tls/libc.so.6 (0x0000002a95f02000)
> libRblas.so => /home/et04/lib64/R/lib/libRblas.so
> (0x0000002a96136000)
> libg2c.so.0 => /usr/lib64/libg2c.so.0 (0x0000002a96262000)
> libreadline.so.4 => /usr/lib64/libreadline.so.4
> (0x0000002a96383000)
> libncurses.so.5 => /usr/lib64/libncurses.so.5
> (0x0000002a964bc000)
> libdl.so.2 => /lib64/libdl.so.2 (0x0000002a96618000)
> /lib64/ld-linux-x86-64.so.2 (0x000000552aaaa000)
>
> My LD_LIBRARY_PATH environmental variable is set appropriately.
>
> Any ideas?
>
> Thanks,
>
> E
>
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